• Yu-sui Chang, Hua-qun Fu, Shu-bing Zou, Ben-tong Yu, Ji-chun Liu, Liang Xia, and Nong-hua Lv.
• Department of Surgery, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China. liujichun999@yahoo.cn
• Zhonghua Wei Zhong Bing Ji Jiu Yi Xue. 2013 Jan 1;25(1):48-51.

ObjectiveTo investigate the impact of fluid resuscitation with different ratio of crystalloid-colloid in early resuscitation stage on prognosis of patients with severe acute pancreatitis (SAP).MethodsA retrospective analysis was made by reviewing clinical data of 47 patients with SAP from January 2001 to December 2011. According to crystalloid-colloid ratio 1.5 or 3, which was the input volume of crystalloid fluid versus colloid fluid in the first 24 hours, patients were divided into low ratio group (crystalloid-colloid ratio <1.5, n=13), middle ratio group (crystalloid-colloid ratio 1.5-3, n=15) and high ratio group (crystalloid-colloid ratio >3, n=19). Among the patients who had been successfully resuscitated, rate of mechanical ventilation, the oxygenation index, intra-abdominal pressure (IAP), and the amount of fluid retention in the third space within the first 24 hours, as well as the parameters of fluid resuscitation and the survival rate within 2 weeks were collected and analyzed.Results(1) In the first 24 hours, the rate of mechanical ventilation in the high ratio group was significantly higher than that in the middle ratio group and the low ratio group (68.4% vs. 20.0%, 23.1%, both P<0.05); the oxygenation index was significantly lower than that in the middle ratio group and in the low ratio group (180.7±26.3 mm Hg vs. 280.6±24.8 mm Hg, 260.3±25.7 mm Hg, both P<0.05); the IAP was significantly higher than that in the middle ratio group and the low ratio group (16.8±3.6 cm H(2)O vs. 13.4±3.5 cm H(2)O, 13.1±3.3 cm H(2)O, both P<0.05); the amount of fluid retention in the third space was significant higher than that in the middle ratio group and the low ratio group (2834±631 ml vs. 1887±282 ml, 1865±300 ml, both P<0.05). There was no significant difference in above indexes between middle ratio group and low ratio group (all P>0.05). (2) In the first 24 hours, the volume of crystalloid in high ratio group was significantly larger than that in the middle ratio group and the low ratio group (3611±798 ml vs. 2308±416 ml, 2124±477 ml, both P<0.05); and the volume of colloid in high ratio group and middle ratio group was significantly lower than that in the low ratio group (993±233 ml, 948±140 ml vs. 1506±332 ml, both P<0.05); and the mean crystalloid-colloid rate in the high ratio group was significantly higher than that in the middle ratio group and the low ratio group (3.65±0.13 vs. 2.43±0.13, 1.41±0.08, both P<0.05). The volume of infused fluid during the first 72 hours in the high ratio group was significantly higher than that in the middle and low ratio groups (11 941±1161 ml vs. 9036±982 ml, 9400±1051 ml, both P<0.05). (3) The survival rate in the high ratio group (36.8%) was significantly lower than that in the middle ratio group (86.7%, P<0.05) and the low ratio group (61.5%, P>0.05).ConclusionsA suitable crystalloid-colloid ratio should be considered in the early stage of resuscitation in patients with severe acute pancreatitis, which would result in a decrease in the fluid retention in the third space as well as an improvement of survival rate in return. It is suggested that the middle ratio of crystalloid-colloid fluid resuscitation should be the optimal strategy.

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